Just downloaded marshmallow, excited to be able to use my sd card as internal storage. However, I don't see that option. Is this a Sprint thing or S5 thing? Am I missing the location on how to do this? When I go to format the sd card, it only shows format as portable storage. Gah, so frustrating. My phone consistently runs out of space because I like lots of apps and 16gb just doesn't seem to cut it.